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PreprintCC BY-NC 4.0HAL

A Novel Operando Tool for Mechanochemistry: NQR spectroscopy

  • César Leroy
  • Danielle Laurencin
  • Daniel Valenza
  • Patrice Montels
  • Philippe Gaveau
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Abstract

In this contribution we present for the first time an operando study of mechanochemical syntheses relying on Nuclear Quadrupole Resonance spectroscopy (NQR). This method represents, to date, the best functional alternative to NMR spectroscopy for the real-time monitoring of ball-milling (BM) syntheses. Two mechanochemical syntheses were followed in operando mode by NQR, namely the formation of a halogen-bonded cocrystal and the preparation of a hybrid perovskite, demonstrating potential applications of this novel technique, as well as its complementarity to more conventional operando methods used in mechanochemistry. Lastly, we show that our BM-NQR set-up can also be used in real-time to follow the temperature evolution directly inside the milling jar.

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Cite

BibTeXRIS
BibTeX
@misc{leroy2026novel,
  title = {{A Novel Operando Tool for Mechanochemistry: NQR spectroscopy}},
  author = {César Leroy and Danielle Laurencin and Daniel Valenza and Patrice Montels and Philippe Gaveau},
  howpublished = {HAL},
  year = {2026},
  month = aug,
  url = {https://hal.science/hal-05820628v1},
  note = {CC BY-NC 4.0},
}
RIS
TY  - UNPB
TI  - A Novel Operando Tool for Mechanochemistry: NQR spectroscopy
AU  - César Leroy
AU  - Danielle Laurencin
AU  - Daniel Valenza
AU  - Patrice Montels
AU  - Philippe Gaveau
PY  - 2026
DA  - 2026/08/28
PB  - HAL
UR  - https://hal.science/hal-05820628v1
AB  - In this contribution we present for the first time an operando study of mechanochemical syntheses relying on Nuclear Quadrupole Resonance spectroscopy (NQR). This method represents, to date, the best functional alternative to NMR spectroscopy for the real-time monitoring of ball-milling (BM) syntheses. Two mechanochemical syntheses were followed in operando mode by NQR, namely the formation of a halogen-bonded cocrystal and the preparation of a hybrid perovskite, demonstrating potential applications of this novel technique, as well as its complementarity to more conventional operando methods used in mechanochemistry. Lastly, we show that our BM-NQR set-up can also be used in real-time to follow the temperature evolution directly inside the milling jar.
ER  -